xbits            1873 net/zlib.c         int xbits;          /* extra bits */
xbits            1894 net/zlib.c             xbits = 0;
xbits            1895 net/zlib.c             if (n >= base) xbits = extra[n-base];
xbits            1897 net/zlib.c             s->opt_len += (ulg)f * (bits + xbits);
xbits            1898 net/zlib.c             if (stree) s->static_len += (ulg)f * (stree[n].Len + xbits);